6661414242 has 40 divisors (see below), whose sum is σ = 17058862656. Its totient is φ = 1903260888.

The previous prime is 6661414241. The next prime is 6661414247. The reversal of 6661414242 is 2424141666.

It is a junction number, because it is equal to n+sod(n) for n = 6661414197 and 6661414206.

It is not an unprimeable number, because it can be changed into a prime (6661414241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2935998 + ... + 2938265.

Almost surely, 2^6661414242 is an apocalyptic number.

6661414242 is an abundant number, since it is smaller than the sum of its proper divisors (10397448414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6661414242 is a wasteful number, since it uses less digits than its factorization.

6661414242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874284 (or 5874275 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 6661414242 is about 81617.4873541204. The cubic root of 6661414242 is about 1881.5776558138.

It can be divided in two parts, 6661 and 414242, that added together give a triangular number (420903 = T₉₁₇).

The spelling of 6661414242 in words is "six billion, six hundred sixty-one million, four hundred fourteen thousand, two hundred forty-two".